The Baltic States, Lithuania, Latvia and Estonia, signed an agreement on the construction of bunkers on the border with Russia and Belarus in the coming years. ** According to the assumptions of the bunkers, they are to form a “Baltic defence line”**. In Estonia 600 bunkers are built, which will be single-modal concrete structures. “They must supply accommodation, retention space for equipment, heat origin and power connection,” reported the commander of the engineering battalion of the Estonian Defence Forces Major Taavi Moor.